Brochure LMG95
Contents
1. 0 3 0 6 13 2 6 52 10 21 21 20A standard measuring input Permissible peak value 0 469 0 938 1 875 3 75 7 5 15 30 60 Options Measuring ranges for full scale A L95 08 1 0 6mA 80mA Overload capability 160A for 1s L95 08 2 10mA 1 2A Input resistance 5mQ L95 08 3 40mA 5A Voltage inputs for current measuring with shunt transducer Rated range value V 0 03 0 06 0 12 0 25 0 5 1 2 4 Permissible trms value V 0 06 0 13 0 27 0 54 1 2 4 8 Permissible peak value 0 0977 0 1953 0 3906 0 7813 1 563 3 125 6 25 12 5 for full scale V Overload capability 250V for 1s Input resistance 100kQ Measuring range selection Auto manual or remote control Isolation Current and voltage path are isolated against each other and may float against earth with 1000V CAT III Measuring method Simultaneous sampling of the current and voltage inputs and A D conversion of the instantaneous values 100kHz Memory for up to 2 10 sampling values Measuring cycle synchronization For measurements of the trms values for current voltage and active power the measuring cycle time is adjustable in the range averaging from 50ms to 60s In each measuring cycle gapless 100kHz sampling and evaluation The synchronization can be performed on the measuring signal the fundamental harmonic the envelope the mains or an external signal Averaging over 1 to 1000 measuring cycles 0 02 0 06 0 02 0 04 0 015 0 03 0 01 0 02 0 015 0 03 0 03 0 06 0 1 0 2 0 5 1 0 0 02 0 06 0 02 0 04 02. 40 harmonic total of 41 with DC component fundamental in the range 45Hz to 65Hz Analyzer in accordance with EN61000 4 7 with evaluation in full compliance with EN61000 3 2 12 Analysis of current voltage and active power up to the 99 harmonic total of 100 with DC component max 10 50kHz fundamental in the range 0 1 Hz to 1 2 kHz with adjustable divider 1 50 a new fundamental can be set as a reference for example to determine interharmonics Flicker meter in accordance with EN61000 4 15 with evaluation in accordance with EN61000 3 3 11 Memory extension for scope function up to 4 million samples of U I and P Sample values available via interface Storing and graphical displaying of transients with a resolution of 10us memory extension L95 011 is included Storing depth is 4 Millions sample values selectable recording duration from 0 05 to 60 seconds Adjustable pre trigger different possibilities of triggering Interfaces RS232 and IEEE488 2 only one interface can be used at the same time All functions can be remote controlled Output of all displayable data possible data formats of all interfaces are the same SCPI command set RS232 max 115200 Baud IEEE488 2 max 1MByte sec Parallel PC printer interface with 25 pin SUB D socket for printing of values tables and graphics 25 pin SUB D socket 4 analog inputs for registration of auxiliary quantities 16bit 10V 4 analog ouputs 16bit 10V for output of e variou
3. is in use as well as the energy consump tion during its fabrication and its disposal In addition the directive addresses further ecological aspects like saving resources through an economic material usage and avoiding hazardous substances Green IT To save the environment information technology and communications equipment has to economize on energy and resources throughout its life cycle To meet these requirements it is important to optimize the equipment during the development stage For this purpose the precision power meter LMG95 is a helpful tool for every R amp D engineer SPECpower_ssj2008 The Standard Performance Evaluation Corporation SPEC is a working group of well known manufacturers of computer systems SPEC has created the industry standard SPECpower_ssj2008 This is a method for measuring computing power electrical po wer consumption and energy efficiency The abbreviation ssj server side JAVA refers to the workload on the server which is reduced in steps of 10 starting at 100 full utilization to zero no load see picture SPECpower_ssj2008 requires that a power meter records the power consumption with a time resolution of 1 second and logs the data into a control system ZES ZIMMER power meters LMG95 for single phase LMG450 and LMG500 for multi phase applications meet this standard Due to their range dynamic they are able to precisely capture changes of the load e g when changing to another workload Moreove
4. t i t p t be output with a sample rate of 100kSample s Via the process signal interface the values can be send to the EUT or a simulation for testing the dynamic control Fast HIL controls require the instantaneous values rather than values that are delayed and averaged over the measuring cycle gt 50ms Ext Shunt Input EUT Output Simulation Energy Efficiency EU energy label Since 1988 household appliances like refrigerators or washing machines must be labeled with the EU energy label see picture The green range A indicates the most efficient energy utilization the oppo site is true for the red range C Precise power meters like the LMG95 are indispensable for the validati on of the chosen label by independent test laboratories Energy Star The Energy Star originally started in Northern America and has spread all over the world For being marked with the Energy Star a product has to meet a defined threshold For example in the USA a newly introduced refrigerator has to save 20 relative to the current maximum admissable consump tion A precise power meter is necessary for both the R amp D of a new product and tests in the field whether it meets the specified savings Energy Efficiency EuP Energy using Products The directive 2005 32 EC defines ecodesign requirements for household appliances and office machines It regulates the admissible energy consumption while a product
5. 015 0 03 0 01 0 02 0 015 0 03 0 03 0 06 0 1 0 2 0 5 1 0 Measuring uncertainty Standard version 0 02 0 06 0 02 0 04 0 015 0 03 0 01 0 02 0 015 0 03 0 03 0 06 01702 0 5 1 0 0 03 0 06 0 035 0 04 0 025 0 03 0 015 0 01 0 025 0 03 0 05 0 06 0 2 0 2 1 0 1 0 Measuring uncertainty 500kHz version Option L95 06 1 0 02 0 06 0 02 0 04 0 015 0 03 0 01 0 02 0 015 0 03 0 025 0 05 0 03 0 06 0 1 0 2 0 5 1 6 1 0 2 0 2 043 0 4 0 4 0 0 02 0 06 0 02 0 04 0 015 0 03 0 01 0 02 0 0157 0 03 0 02540 05 0 05 0 06 0 140 2 0 541 0 1 0 2 0 3 0 3 0 4 0 4 0 0 02 0 06 0 02 0 04 0 015 0 03 0 01 0 02 0 01570 03 0 02540 05 0 05 0 06 0 140 2 0 5 1 0 1 0 2 0 3 0 3 0 4 0 4 0 0 03 0 06 0 035 0 04 0 025 0 03 0 015 0 01 0 025 0 03 0 04 0 05 0 05 0 06 0 2 0 2 FOTIFO 2 0 2 0 6 0 3 0 7 0 4 0 Technical Data Measuring uncertainty of cos Measuring uncertainties based on Other values Internal time base Frequency measuring Display of measured and computed values Representation Voltage current Power Impedance Integrated values depending on the measuring time Energy charge Date and time measuring time Adjustable parameters Synchronization Scope function Plot function Harmonic analysis CE Hrm Harmonic analysis HRM100 Option L95 010 Flicker measuring Option L95 04 Memory extension Option L95 011 Transients monitoring and storing Option L95 05 Computer interfac
6. A 4 to 8 values can be displayed simultaneously selectable via default or user defined menus Trms value peak values min max pp rectified value rect mean value dc trms value of ac component ac form factor crest factor Active power P reactive power Q apparent power S phase angle power factor A Amount Z real and imaginary part of resistor in serial equivalent circuit The integration can be controlled manually automatically using start and stop times via external trigger or remote controlled via computer interface Active energy Ep reactive energy Eq apparent energy Es charge q Current date day month year with time hours minutes seconds accu buffered real time clock start time for measurement running measuring time on time each with days hours minutes seconds Scaling factors for external shunt current and voltage transducer Synchronization is made on the periodicity of the measured signal Periodicity can be determined by the signals u t i t p t u2 t 12 t each of them can be adapted with selectable filters By this stable displays also with pulse width modulated signals e g frequency inverter and amplitude modulated signals e g electronic ballast Synchronization also by Line and External Graphical representation of sampled values waveform of the signal Time diagram of calculated values e g trms value and power Analysis of current and voltage up to the
7. Precision Power Meter LMG95 Z S ZIMMER Electronic Systems Itrms 142 306 mA Utrms 223 561 V y 21 0023 H PF 0 66016 The most precise in its class Basic accuracy 0 015 of reading 0 01 of range Precision range DC 500kHz Analysis of devices and components In switched or modulated operation Harmonics and flicker according to EN61000 3 2 3 11 12 LMG95 Precise Direct All Waveforms The LMG95 single phase precision power meter is an outstanding product f in the proven LMG series of ZES ZIMMER precision power measuring PoS current of a teang power devices Highly accurate continuously gapless signal measurement and supply processing ergonomic operation and presentation of the results inter faces with high data rates for efficient system applications these are the performance features which distinguish the LMG95 is E e m All Waveforms The high precision power measurements on components and devices that aE seui are required in development quality assurance and manufacturing can Waveform of be performed with ease independent of whether the current and voltage charging current ab sednevaiv Ln are sinusoidal or distorted whether the load is linear or not or whether ai the circuit works in a chopped pulsed or another modulation mode The extended possibilities of synchronization on the periodicity of the measured signal always produce distinct and stable measurement displays and res
8. chen Bundesanstalt PTB direkt oder des Deutschen Kalitetercientes DKD mickiMhrbar sinc Diese Kalibrierung efit die Anforderungen der 1509000 Der Kaliteterschein erfit die Kriterten der EN4S001 The helow Mutnawen Der Deen caltvuted Whe shows in he following calitvation proton ant meris he aumufackarer sperificatiaty The recaltvuttoe Loera is 12 mows ZES certifies that tbe ured refiveoce devices are traceable to the cational stendand laboratory Poysitaiech Tectnoote Sueferacsiny PTS or the geroae calibration service DKD TAG aaitvatioe sheet moris Me reguire mney of ISOKNN ant tde EN4SO0I Gegentand Obect Aea KR L95 LMG95 1HE L95 Z01 Calibration certificate Precision Power Meter LMG95 Kit to mount LMG95 into industrial cabinet IS09000 traceable 1 RU flat case without display and keyboard LMG95 application software optional WR 24 230 Inverter 24VDC to 230VAC 50Hz for supply of LMG instruments L95 Z09 Measurement input sockets on rear of the device e g industrial cabinet LMG CONTROL B PC software for data transfer configuration and visualization Modular design Saves and loads device configurations Interactive mode to set up a measurement Recording and logging of data with timestamp accurate to the milliseconds Analysis modules for different applications and evaluations Basic version is free of cost and available at www zes com LMG CONTROL WA Additional module for LMG CONTROL logging and analys
9. e Option L95 01 Remote control Output data Transfer rates Printer interface included in Option L95 01 Processing signal interface Option L95 03 Other data External synchronization trigger Service RS232 interface Auxiliary power supply output Dimensions weight Safety regulation Electromagnetic compatibilty Protection class 3 10 S 1 o gt 01 i 5kHz L95 O6 1 Opt 500kHz 2 H 5kHz L95 O6 2 Opt 500kHz with adjustment for max 4ns delay lt j 0 01 50Hz L95 O6 1 Opt 500kHz TY 50Hz L95 O6 2 Opt 500kHz with adjustment for max 4ns delay 0 00001 0 001 0 01 0 1 cos 1 1 sinusoidal voltage and current 4 definition of power range as the product of 2 ambient temperature 23 3 C current and voltage range 0 lt IAI lt 1 P S power factor 3 warm up time 1h 5 calibration interval 12 months All other values are derived from the values for current voltage and active power Accuracies for the derived values depend on the functional relation e g S I U AS S AI I AU U 100ppm 0 05Hz 500kHz 0 01 of measuring value measuring channel selectable With standard abbreviation of measured magnitudes numeral values 6 digits 0 999999 with sign decimal point and unit e g Itrms 0 73851m
10. is of all sampling values of the LMG harmonic analysis up to 50kHz frameanalyser recording of transients CETEST61k SOFT Control data logging evaluation software for conformity tests of harmonics and flicker according to EN61000 3 2 3 11 12 with the LMG95 CETEST61k SW 01 Option 01 to CETEST61k SOFT harmonics analysis 2kHz to 9kHz according EN61000 4 7 annex B CE Test Standby PC software for standby power measuring according to EN IEC62301 LabVIEW Driver LMG95 driver for LabVIEW 8 2 for RS232 and IEEE488 2 interface with software examples Driver is free of cost Subject to technical changes especially to improve the product at any time without prior notification United States subsidiary ZES ZIMMER Inc 44 Grandville Ave SW Suite 360 Germany headquarter ZES ZIMMER Electronic Systems GmbH Tabaksmuhlenweg 30 D 61440 Oberursel aes L ff M M E PR Grand Rapids MI 49503 4064 Tel 49 6171 628750 Fax 49 6171 52086 Tel 1 760 550 9371 usa zes com www zes com e sales zes com
11. n accordance with class A Analyzers in CE Test Systems The LMG95 is used as an analyzer in CE test systems to test electrical devices on harmonics and flicker and their effect on mains Line voltage The ZES ZIMMER test system against artificial ar pAr E Yrdiv CE Test61k is usually equipped midpoint ee with a precision power meter LMG500 for 3 phase application or with a LMG95 for single phase applications Components can also be ordered and used separately easy integration of customer owned power sources Measurement of the amplitude spec trum of the voltage harmonics in the HRM100 mode An increase in the 47 and 49t the frequency of the funda mental amounts to fn 47 26 25Hz Transparency Through Real time Visualization in the Time and Frequency Range Electronic transformer zeae ea PMR SEEN SY 4 val Utrns 11 71890 ltrms 3 9760 A ne 89 UR Utrms 11 7086 V 4 153 var Ps 46 361 W H 99681 108 808 Hz PF 0 99588 2 94565 i Electronic 12V transformer to supply a halogen lamp Amplitude modulated 150 kHz carrier with 100Hz envelope Burst firing control of a hot air fan Harmonic ltrms 4 13780 i E CETE Pn TESNE i Utrms 2278 993 U 54868 kW 91442 KUA 737 45 kuar 59128 56217 HZ C oSI 5 xz 24 Amplitude spectrum with the help of the HRM100 harmonic analysis The burst fire presents a 1 56Hz modulation of the carrier 50Hz mains voltage The DC c
12. nitors the current is 10 times larger than in the example above and hence the measuring range also needs to be increased by this factor The crest factor of a state of the art zero watt PC can reach values of 6 or higher due to its rectifier with smoothing capacitor These peaks superimpose the capacitive reactance current and yield the main contribution to the standby consumption and therefore the measuring range has to be increased by an additional factor In this example the measuring range must measure a current of 22mA with a peak value of 130mA The low power factor and the high crest factor can increase the measuring uncertainty by the order of two and hence the power meter must have a basic accuracy of 0 03 Energy Efficiency Ext Shunt U U Ext Shunt LMG SHxxx P Technical Data Voltage measuring ranges Rated range value V 6 12 5 25 60 130 250 400 600 Options for modification of Permissible trms value V 7 2 14 4 30 60 130 270 560 720 600V standard measuring input Permissible peak value 12 5 25 50 100 200 400 800 1600 Options Measuring ranges for full scale V L95 07 2 25mV 3V Overload capability 1500V for 1s L95 07 3 100mV 12V Input resistance 1MQ 20pF L95 07 4 400mV 60V L95 07 5 12V 650V 3200Vpk Current measuring ranges Rated range value A 0 15 03 06 12 25 5 10 20 Options for modification of Permissible trms value A
13. omponent of the spectrum results from the blower motor in half wave operation The extended X Trig trigger mode detects the 1 56Hz periodicity which is used for synchronization Flicker measurement Using the plot function the half wave trms values Ul are plotted over time Patl 8 13837 o AE PT yediv 22 00 w 5 g E Lit Fa J lower curve B There are irregular PIt1I1 2 29461 Pmoml 8 88369 sags of about 8V The momentary flicker dcl 1 345 Pmom resulting from these changes is dmaxl 3 652 visualized by curve A Ltime 6d8bhbamMes Stime 8 d h m State Stop xd iw 4 Hu Switch on current of a fluorescent ballast measured in the transient mode Switch on current of a fluorescent lamp ballast The iron is not saturated sen Limit 10 Slewrate Win In Limi 400 O00 m Win Out Limz 0 00000 Limi Slewrate lt Limi da 1 00000 gt Lim g aes dt 1000s 10 In the moment when the currentless TEA BE 4 Signa ltrms 8 463 A non magnetized transformer is switched i Iac 4535A on a multiple of the nominal current is Idc H944 red to build th fl Ipp 7089 A required to build up the necessary flux Irect 8 31758A The iron goes rapidly into saturation Icf gt 8994 Here linr Itrms 12 9 zi i m IFF 45898 SaaS Sse Zi xfdiv 50 Gans more Liner 9769 A Formula Editor Device Settings and Fast Analog Outputs e with optional 500kHz precision band Core losses at small cos and high f
14. or almost reactionless measurement of current e g at discharge lamps Technical data information and selection guide in the user manual ZES Sensors and Accessories available on request and at www zes com Precision high voltage divider Precision high voltage divider for 3 6 9 12 30kV up to 300kHz 0 05 Negligible phase error therefore best suited for wideband power measuring 1 channel HST for single ended voltages 2 channel HST for floating voltages difference measuring 3 channel HST for three phases systems inverters Power quality analysis in railway technology and medium voltage systems Insulation diagnostics by tan amp measuring down to 0 1Hz Suitable for outdoor application IP65 with high overvoltage Other accessories and special versions designs L95 Z318 LMG MAK1 LMG MAS1 L5 IOBOX S F RS232 Ethernet converter 10 100Mbit U I measuring adapter for safety plugs Adapter rail mounting for easy connection of process signals including 2m connection cable Kalibrierschein Electronte Syatente Calibration Certificate ZES ZIMMER Electronic Systems baksmiihlenwep 30 D 61440 Oberursel FRG Tel 449 0617162 87 50 FAX 49 0617 1 520 86 unten angegebene Mefgertit wurde emib dem nachfolgencen MeBprotokell kal brier und entspricht den Herstellerspecifikationen Dus Kalittterintervall briat 12 Monate ZES besaiigl dab die verwendeten Referenzgct ie au Nonnak cer Physileilisch Technis
15. r they do not only transmit the measuring value but also the respective measuring range and its utilization so that the measuring uncertainty can be calculated for each period ZES ZIMMER LMG series power meters have been approved by SPEC P Pert toP Rati SPECpower Workload Iteration ke ee eS eS ee WU 292 overall ssj_ops watt Power Target Load Active Idle t r r r T tt 1 t 1 r E T Measurement Interval Target Loads O 10 20 30 40 50 60 70 80 90 100 110 Average Power W Source 2007 2009 Standard Performance Evaluation Corporation SPEC reprint with permission Source Article The measurement of the PC world c t 2008 edition 4 Standby Power Measurement The regulation 1275 2008 released by the European Commission defines limits for power consumption of household appliances for the off mode and a defined standby mode From January 2010 these limits are 1W respectively 2W and from 2014 the limits will be cut to half to 0 5W respectively 1W In case of an ohmic load a voltage of 230V and an acceptable power loss of 0 5W implies a current of about 2 2mA 2 ac curacy of 0 5W equals an uncertainty of 10mW which seems to be easy to handle by most power meters However in practice standby circuits usually have a low power factor and a high crest factor Assuming that the power factor is 0 1 which is rather common for applications like refrigerators or PC mo
16. requencies a and dey oe AE P01 23450789 87 s sc gt LDF Ly EN PER snc tfe ABCDEFGHI JKLMNOPQRS TUVUKVE Fe Y9 6 45658 Ta z B 17 2996m bok Uirects 4 f 3 0 00009161 i 3 32315 pk Ipp 2 3 0 085608 4 W427 ak a Bpk 1 2566e 6 Hpk COPS 51 6381 k fsCFu lictsCF i lctspt PF l 1 63513 if P 4 3 freezell fi 1 49917 if P gt d bellil fi E 91 4917 m The magnetizing current I flowing in the primary winding is fed into the current input of the LMG95 and the induced volt age at the open secondary winding is fed into the voltage input In this way only the core losses magnetizing losses are measured and not the copper losses The half wave rectified voltage value also measured with the LMG95 is a measure of the voltage time area and therewith for the induced flux With the formula editor the values for a B H characteristic curve can be calculated from the measured electrical values and the geometrical data of the core Device settings Ley deed EES eene UActivelReci1 Up to 8 device settings can be stored with a name details of the EUT etc with Fon Wau ean ean r Save and retrieved again with Recll This provides for a high level of user convenience if measurements are made alter List of Configurations PUN inverter natively on different EUTs steresis losses Fast analog outputs u t i t p t for HIL hardware in the loop control The instantaneous values of u t i t p t can LMG95 u
17. s measure values and operands updated at the end of each measuring cycle e signal samples i u p synchronous to the 100kHz sampling frequency 4 digital inputs for registration of status 4 digital outputs to signal states and alarms 1 input for frequency 0 1Hz 500kHz and direction e g of motors 1 power supply output 12V 50mA Inputs and outputs are isolated group wise against each other and against the other electronics testing voltage 500V Isolated interface for external control of measurement cycle and integration times outputs for status signals about the actual measuring For installing options firmware and for instrument diagnosis 15V 0 4A and 15V 0 2A for external transducers Desktop case w 320mm x h 147mm x d 274mm subrack 84PU 3HU d 274mm about 5 5kg EN61010 1 protection class I overvoltage class III EN61326 1 EN61000 3 2 EN61000 3 3 IP20 acc to EN60529 Operation temperature storage temperature 5 40 C 20 55 C Supply 90 250V 45 65Hz about 30W Measurement Accesories and Extensions Plug N Measure current sensors for extended current ranges up to 10000A Precision DC 0 02 DC 1MHz 0 8A 5000A Precision AC 0 02 15Hz 5kHz 5A 10000A Clamp on CT 0 15 2Hz 50kHz 0 3A 3000A Wideband AC 0 25 30Hz 1MHz 10A 1000A Low cost Hall 0 3 DC 200kHz 0 3A 2000A Shunt for standby measurements 0 15 DC 100kHz 0 15mA 1A HF differential transformer with load resistor f
18. ults r spectrum of the mpa Direct up to 600V and 20A harmonics with CE evaluation in i f accordance with class A Isolated measurement inputs with direct measurement ranges up to 600V 1600Vpeak and 20A 960Apeak for the measurement of inrush currents and the input for current measurements using a shunt or other transducer measure the incoming measurement signals exactly and without any eae control aberrations 0 015 of Reading 0 01 of Range With a basic accuracy of 0 025 is this the most precise instrument in its class and therefore it is used as a reference device for energy meters power meters power measurement transformers and trms meters for current and voltage TE E wE E current e 221357 maf 50 0146 Hz Harmonics and Flicker in Full Compliance We 8 424 mA with EN61000 3 2 3 11 12 fe or7 6 ma The harmonic analysis in full compliance with the EN61000 3 2 12 rae standard is already available in the basic unit The flicker meter in 8 238 mA compliance with EN61000 4 15 for the measurement of flicker voltage variations and with EN61000 3 3 11 is available as an option These two functions also considerably extend the possible applications of the LMG95 in R amp D laboratories If suitable stable voltage sources are available tests for CE compliance can be performed in accordance with EN61000 3 2 3 11 12 PWM frequency inverter Table of the current harmonics with limits i
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